Customers that pre-purchase via Steam will be able to play "immediately upon its release." Steamworks--embedded in both retail and digital versions of the game--will allow gamers to utilize auto-updating, Steam achievements, Steam cloud features, and more. And, Valve reiterates that Modern Warfare 3 will "support dedicated servers on day 1."

Pre-purchases are already available on Steam for $59.99. Modern Warfare 3 will be available on PC on November 8th.